BENZOIC ACID VOLUMETRIC STANDARD SECOND (C005B-055714)

General description

Benzoic acid is a volumetric standard produced under rigorous conditions and qualified with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Application

It is used as a certified reference material (CRM) for titer determinations in alkalimetric titrations, following USP and Ph. Eur.

Features and Benefits

• Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
• Certified reference material according to ISO 17034
• High-purity material traceable to NIST SRMs
• Measured in a DIN EN ISO/IEC 17025 accredited laboratory
• In accordance with the chapter reagents of USP and Ph. Eur
• High-quality offering accurate titer determinations
• Accompanied by a certificate of analysis (CoA)

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Molecular Weight: 122.12. Empirical Formula: C₇H₆O₂. Agency: ISO 17025, reag. Ph. Eur., reag. USP. Quality Level: 300. vapor pressure: 0.001 hPa ( 20 °C). form: solid. autoignition temp.: 570 . °C. potency: 1700 . mg/kg LD₅₀, oral (Rat), >. 5000 . mg/kg LD₅₀, skin (Rabbit). technique(s): titration: suitable. pH: 2.5-3.5 (20 . °C in H₂O, saturated solution). bp: 249 . °C/1013 . hPa. mp: 121-123 . °C. transition temp: flash point 121 . °C. solubility: 2.9 . g/L. density: 1.321 . g/cm³ . at 20 . °C. bulk density: 500 . kg/m³. storage temp.: 15-25°C. InChI: 1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9). InChI key: WPYMKLBDIGXBTP-UHFFFAOYSA-N. Pictograms: GHS05,GHS08. Signal Word: Danger. Hazard Statements: H315 - H318 - H372. Precautionary Statements: P260 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P314. Hazard Classifications: Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation. Target Organs: Lungs. Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects. WGK: WGK 1.